جدول روابط مجموعه‌ها: | اجتماع | اشتراک | | --- | --- | | $A \cup A = A$ | $A \cap A = A$ | | $A \cup \emptyset = A$ | $A \cap \emptyset = \emptyset$ | | $A \cup B = B \cup A$ | $A \cap B = B \cap A$ | | $A \cup (B \cup C) = (A \cup B) \cup C$ | $(A \cap B) \cap C = A \cap (B \cap C)$ | | $if A \subseteq B \implies A \cup B = B$ | $if A \subseteq B \implies A \cap B = A$ | | $A \subseteq (A \cup B)$ | $(A \cap B) \subseteq B$ |